#31A545
Closest named color: Mid Green (#50A747). oklch(63.7% 0.17 146), rgb(49, 165, 69).
Aa
Black text reads best on this color (6.59:1).
About this color
#31A545 is a medium-light, vivid green. In OKLCH its lightness is 64%, its chroma 0.170 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mid Green (#50A747), ΔE 0.023 away. Black text reads best on it, at 6.59:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.170) |
| Temperature | in between |
| Nearest name | Mid Green (#50A747) |
| Black text | 6.59:1 |
| White text | 3.18:1 |
Values
| HEX | #31A545 |
| RGB | rgb(49, 165, 69) |
| HSL | hsl(130, 54%, 42%) |
| OKLCH | oklch(63.7% 0.17 146) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #31A545 | 3.18:1 | AA large text | Lc -64.0 | Content text, not long reading |
| Black text on #31A545 | 6.59:1 | AA | Lc 45.5 | Large or bold text, headings |
| #31A545 text on white | 3.18:1 | AA large text | Lc 58.5 | Large or bold text, headings |
| #31A545 text on black | 6.59:1 | AA | Lc -43.2 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F1F8F1
oklch(97.2% 0.012 145.5)
-
Step 100
100
#E0EEE1
oklch(93.5% 0.023 147.4)
-
Step 200
200
#C6E2C7
oklch(88.5% 0.047 146.1)
-
Step 300
300
#9ED0A1
oklch(81% 0.084 146.3)
-
Step 400
400
#65B66D
oklch(70.6% 0.132 146.2)
-
Step 500
500 (this color)
#31A545
oklch(63.7% 0.17 146)
-
Step 600
600
#008C2B
oklch(55.7% 0.17 146)
-
Step 700
700
#007623
oklch(49.2% 0.15 146)
-
Step 800
800
#00601B
oklch(42.6% 0.13 146.1)
-
Step 900
900
#065018
oklch(37.7% 0.11 146.1)
-
Step 950
950
#092F0F
oklch(27% 0.07 145.9)
#31A545 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #A7963B | 0.129 |
| Deuteranopia (no green cones) | #9A8D4D | 0.129 |
| Tritanopia (no blue cones) | #00A190 | 0.102 |
| Achromatopsia (no color) | #909090 | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31A545
#31A545
oklch(63.7% 0.17 146)
- #BE61C1
#BE61C1
oklch(63.7% 0.169 326.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #31A545, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Green #50A747 ΔE 0.023
- Medium Green #39AD48 ΔE 0.024
- Kelly Green #02AB2E ΔE 0.034
- Grassy Green #419C03 ΔE 0.039
- Grass Green #3F9B0B ΔE 0.040
- Shamrock #01B44C ΔE 0.042
- Muted Green #5FA052 ΔE 0.043
- Grass #5CAC2D ΔE 0.044
Use #31A545 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.